Title :
1.58 μm band Er3+-doped fibre amplifier pumped in the 0.98 and 1.48 μm bands
Author :
Ono, H. ; Yamada, Makoto ; Sudo, Shunsuke ; Ohishi, Yasutake
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki
fDate :
5/8/1997 12:00:00 AM
Abstract :
The amplification characteristics of 1.58 μm band Er3+ -doped fibre amplifiers pumped in the 0.98 and 1.48 μm bands were investigated. The noise characteristics were improved by adopting 0.98 μm band pumping. There was >0.3 dB improvement in both the average noise figure and the flatness of the noise figure
Keywords :
erbium; fibre lasers; laser noise; optical pumping; 0.98 micron; 1.48 micron; 1.58 micron; Er3+-doped fibre amplifier; amplification; noise figure; optical pumping;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970577